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 $A4/164:   Pulse Counter Tape Read or Write/Serial Bus shift Counter

  Used by <A HREF="MAPBB.HTM">ByteBoiler</A>: Temporary

Kernal-Reference:

 LDA $A4     : <A HREF="ROMEE13.HTM">$EE80</A> <A HREF="ROMF92C.HTM">$F9A2</A> <A HREF="ROMFBCD.HTM">$FBF5</A>
 ROR $A4     : <A HREF="ROMEE13.HTM">$EE65</A>
 STA $A4     : <A HREF="ROMF92C.HTM">$F9A6</A> <A HREF="ROMF92C.HTM">$F9BE</A> <A HREF="ROMFB97.HTM">$FB9D</A> <A HREF="ROMFBCD.HTM">$FBF9</A>

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